Classification
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388 - Transportation; ground transportation
1
390 - Customs, etiquette & folklore
1
395 - Etiquette (Manners)
3
414 - Phonology & phonetics
1
500 - Natural sciences & mathematics
152
510 - Mathematics
7
519 - Probabilities & applied mathematics
3
530 - Physics
2
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
4
580 - Plants (Botany)
5
581 - Specific topics in natural history
1
600 - Technology
13
602 - Miscellany
3
610 - Medicine & health
12
615 - Pharmacology & therapeutics
1
616 - Diseases
1
620 - Engineering & allied operations
24
621 - Applied physics
2
629 - Other branches of engineering
1
639 - Hunting, fishing & conservation
2
640 - Home & family management
5
641 - Food & drink
1
646 - Sewing, clothing & personal living
1
648 - Housekeeping
1
650 - Management & auxiliary services
651 - Office services
3
657 - Accounting
19
658 - General management
2,062
659 - Advertising & public relations
12
670 - Manufacturing
157
700 - The arts; fine & decorative arts
13
720 - Architecture
2
740 - Drawing & decorative arts
2
741 - Drawing & drawings
2
744 - [Unassigned]
1
745 - Decorative arts
19
781 - General principles & musical forms
1
782 - Vocal music
1
790 - Recreational & performing arts
1
796 - Athletic & outdoor sports & games
1
800 - Literature & rhetoric
30
808 - Rhetoric & collections of literature
5
811 - American poetry in English
1
813 - American fiction in English
1
900 - History & geography
2